P4 microchip upgrade - What can I purchase?

I have a Dell Dimension 8100 series desktop:

System Information  
System chip set Intel 850
Data bus width 64 bits
Address bus width 32 bits
DMA channels eight  
Interrupt levels 15
System BIOS chip 4 Mb
System clock 100 MHz; 400 MHz data rate


I want to purchase a faster chip but I am usure exactly what to look for that would be compatibable.   I need to be educated about what I should be looking for (i.e bus speed? I assume anything over 400 MHz would be worthless??
Also, how do I know what socket interface to buy?)

Thanks!
freejasoAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

jhanceCommented:
Yes, all that is nice, but what speed CPU is currently installed?
freejasoAuthor Commented:
1.2

I assume I can get a 1.8 423 socket type CPU?
CallandorCommented:
The fastest socket 423 is a 2.0 GHz cpu, but I doubt there are many selling anymore, since they have been superceded by socket 478 and LGA775 cpus for a while.  To get more bang for the buck, a new motherboard that can get you up to 3.0 GHz may be a better upgrade path.  Unfortunately, you may need new RAM and a new power supply to match.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Introduction to Web Design

Develop a strong foundation and understanding of web design by learning HTML, CSS, and additional tools to help you develop your own website.

freejasoAuthor Commented:
Yea, I cannot find a 2.0 but I did manage to find a 1.8 Ghz cpu.  So.. when I change out the cpu do I have to purchase a new fan/cooling unit?
jhanceCommented:
Yes!  Chances are that the original fan/heatsink was sized for the old CPU.  The new 1.8GHz CPU will almost certainly dissipate more power so you need an appropriately sized fan/heatsink.  
CallandorCommented:
If this is a retail cpu, it will come with a fan which is sufficient for that cpu.
freejasoAuthor Commented:
Nope - Not a retail chip - I purchased it from computergeeks.com.  Any suggestions on a fan/heatsink?

CallandorCommented:
I like Zalman's products - this CNPS7000B is fairly hefty, but it is quiet and efficient at removing heat: http://www.newegg.com/Product/Product.asp?Item=N82E16835118112.
freejasoAuthor Commented:
Will that fit a 423 socket? Specs don't specify.
CallandorCommented:
Now that I've checked, the 423 is not among the supported cpus: http://www.zalman.co.kr/eng/product/view.asp?idx=141&code=005009

However, the CNPS5100 does support the socket 423: http://www.zalman.co.kr/eng/product/view.asp?idx=24&code=009
freejasoAuthor Commented:
Thanks for the help.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Components

From novice to tech pro — start learning today.